Collapsible chock for log-car bunks.



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Patented June 1l, i912.

lJ. M. RQHLFING. COLLAPSIBLB CHOGK FOR LOG GAR BUNKS.

APILIGATION FILED JAN.31, 1912.

1 entren srafrns rajrnn'r operon.

JOHN M. ROHLFING, on sr. LoUIs, MISSOURI, assIGNoR To 'AMERICAN CARAND FOUNDRY COMPANY, OF ST. LOUIS, MISSOURI,

CORPORATION OF NEW JERSEY.

lGQ11111113.SIIBLE SHOCK FOR LOG-CAR BUNKS.

Patented June :11, 1912.

Original application iiled February 19, 1910, Serial No. 544,\795. Divided and this application filed January 31, 1912. Serial No. 674,628.

T 0 all fri/*hom 'it 'may concern:

Be it known that i, dorm lvl. ltoinauNc, residing at tit. Louis, lliissouri, and being a citizen ot the Tilnited States, have invented certainv new and us ul improve-- ments in Collapsible Chocl-.zytoi Log-Car Brinks, of which the following is a tull, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and to use the saine, refs crenoe being had to the accompanying drawings, `which illustrate the preferred form ot the invention, though it to be understood that the invention is not limited to the exact details oit construction shown and described, as it is .obvious that Various modifications thereof will occur to persons yskilled vin the art'.

In said drawings: 'Figure 1 is a plan 'View ot a bunk and the chock embodying the features of the present inrcntion` parts being broken' away for saving ol space. Fig. 2 a longitudinal vertical section taken on the planes indicated by line 2- 2 of Fig. 1, parts bling seen in elevation, and intermediate parts beting` broken out. Fig. 3 is an end View ofthe parts seen in Fig. l1 with the upper iliortion ot the legs ot the chock broken away. Fig. is a detail elevation of the inner ot the chock detached. Fig. 5 is a similar View of the outer leg thereof the rollers and bolt therefor being omitted.

One of the objects in View is the provision of a chock which is easily collapsible, and maybe readily collapsed from the opposite side of 'the car lto that occupied by the particular chock which it is desired to operato, and a further object is the co1nbination with such chock: oit' an improved bunk of rolled channel beams so disposed that the legs or men'ibcrs ot the chock, when collapsed, may assume a positionout of the path oit logs moving onthe beams.

The bunk or bolster is not specifically.

claimed hereinas it forms the subject-matter of another application, Serial Number 544,795, tiled February 1Q, 1910.

Channel beaniis 1--1 are provided and disposed with. the major portion of ltheir webs in vertical position, the channels being spaced apart, and the webs being 1cent longitudinally above the median line to extend, outwardly at right angles and away from each other in a horizontal position, forming treads 2-2, the anges of the channels. 1 upstanding from treads 2, as at thus producing a longitudinal trough within which the chocks may collapse when unloading the car. The beams 1 are connected intermediate their length by bearing plate i and top plate 5, and at their ends by castings or suitable nieta] angle sections -G, each of the latter comprising a U shaped plate angular in transverse' section, and fixed to the webs and lower flanges of the beams 1 outside thereof, leaving open the ends of the trough formed by said beams.

At each end of the bunk, a log retaining chock is provided, and each being a duplicate of the other, one only 'will be described and the description and reference numerals will apply to both.

The chock comprises a pair of legs 7 and 8, having rcgisteringeyes 9 and 10 at their upper ends, connected `by pin or bolt 11. The lower end of leg 7 terminates in'a pair of spaced hooks 12, adapted in `operation to engage any of aseries of apertures 13-13 formed in the treads 2. Flanges 14-14 extend outwardly from the body of leg 7 and a trip lever 15 hasits upper end extending between the anges, and pivoted thereto by a pin 16, engaging said :tlanges and extending through an eye 17, at the upper end of the lever 15. Outstanding troni said upper end of lever 15 is a hook 1S, adapted, when the chock is in its raised position, to engage a hook 19 extending inwardly from leg 8. A. spring 22 is fixed to leg 7 and has its free end engaging lever 15 under spring pressure tending to maintain the hook 18 in its raised position for assuring the maintenance of the hooks 18 and 19 normally in locking engagement. The lower end of leg 8 is4 provided with an eye 23, through which is passed a bolt or pin 24, carrying .a roller at each end, said rollers being .mensions of the logs being handled, and

when it is desired to unload the logs from the bunk at either side of the car, it is only necessary to exert a pull on the chain 26 connected with the lever 15 of the chock at the opposite side of the car, whereupon the hooks 18 and 19 will be disengaged and rollers 25, traveling outwardly, allow the chock to be readily andvquickly collapsed to a relatively horizontal position beneath anges 3 of the bunk upon which the logs rest. The restoration of thevraised condition of .the chock requires merely forcing the leg 8 back or inwardly toward the middle of the car until hook 19 snaps past and into engagement with hook 18, the hooks 18` and 19 having their ends rounded to enable automatic interlocking of .the hooks when' pressed together;

What I claim is:

1. In combination, a flanged beam bent longitudinally intermediate its width .for disposing a portion of the web laterally to form a tread having an upstanding flange, and a chock mounted on said web and adapt ed to be shit-ted from a position extending above said upstanding flange to position below the top edge of the flange.

2. The combination with a bunk, having a tread formed with apertures and a liange upsta-nding therefrom, of a chock comprising pivotally connected legs, one of the legs having means for engaging said apertures for retainingv the leg against longitudinal movement, and means for detachably connecting Athe legsvfor retaining the same in upstanding position against pivotal movement.

3. A chock comprising pivotally connected legs, and a hook fixed on one leg, a trip lever ivotedv to theother leg, and a hook exten ed from said lever, adapted to engage Athe first mentioned hook for detachably locking the legs in an outstanding position.

4. The combination with a bunk, vci" a chock comprising a pair of .pivotally connected legs one of said legs having means adapted to engage the bunk for retaining the leg against longitudinal movement, and allowing pivotal movement thereof, the other leg being adapted to havea sliding engagement longitudinally of the bunk, forl permitting relative pivotal movement of the legs, and a hook carried between said 'legs for detachably connecting thelegs in an upstanding position onpreventing said pivotal movement thereof.

5. The combination with a bunkhaving longitudinal treads and apertures formed therein, of a chock comprising a pair of pivotally connected legs, one of said legs being formed with means for engaging said apertures to retain the leg against longitu- /dinal movement, the other leg being formed with an eye, a pin extending through said eye, rollers carried by said pin and enga ing said treads, and means for detachab y connecting the legs in upstanding position.

6. The combination, with a bunk, of la chock comprising pivotally connected legs, a hook carried between said legs to detach' ably connect said legs for maintaining the same in an upstanding position, said hook comprisinga'trip lever for releasing said hook.

`7. A collapsible chock -formed of two legs connected by a hinge joint which normally vpermits said legs to expand, and a separately formed pivoted hook carried by one of said legs and adapted to engage a suitable seat on the other leg.

8. A collapsible chock formed of two legs connected by a pin, said legs being normally free to expand, a hook on one of said legs adapted to interlock with a fixed supporting member and a second hook adapted to lock said legs in elevated position.

. 9. The combination with a bunk provided with a channel near its top', of a chock slidably seated in said channel, said chock comprisingrtwo hinged legs, hinged and free to told andv not limited as to their spread when open, a releasable hook extending below and between said legs adapted tolock said legs in folded position andrmcans adapted to release said hook to permit collapse of said chpck within said channel.

In witness whereof l have hereunto set my hand in the presence of two witnesses.

JOHN M. ROHLFING: y lVitnesses:

PAUL M. Benno, JAMES J. COOPER. 

